Kennetht Posted November 2, 2003 Share Posted November 2, 2003 ok, I'm building a hood that would put the 70W MH 6.5" from the top of the tank. Is this enough room or not? Also, will the glass canopy that I have now, block the harmful rays or will I need to do something else? Thanks in advance. Link to comment
bamann345 Posted November 3, 2003 Share Posted November 3, 2003 Height, yes that is fine, but plan on having at least 1 fan to help with heat.... As for the glass cover, I dont know, sorry! Link to comment
Kennetht Posted November 3, 2003 Author Share Posted November 3, 2003 Sorry, forgot to mention that there will be two 80mm fans....one pulling air in and one pushing air out. Will this be enough air movement or not? Link to comment
Kennetht Posted November 3, 2003 Author Share Posted November 3, 2003 Another question that I have is how do I acclimate my corals to the brighter light? I know that I can't just blast them with it. Thanks in advance. Link to comment
Jahkaya Posted November 3, 2003 Share Posted November 3, 2003 Ken: From What lighting environ are they coming? That would be the key to your acclimation question. Link to comment
kennerd Posted November 3, 2003 Share Posted November 3, 2003 FWIW: shorter photoperiod still bakes and could shock them, due to the exposure to higher intensity. Best bet is to raise the entire hood 4-6" higher to start, then gradually lower it to the normal position over a period of a few weeks. You can do this with a stack of 1" molding pieces, removing one every few days/week. Link to comment
Kennetht Posted November 3, 2003 Author Share Posted November 3, 2003 I have a 28w 50/50 pc on the tank now. Link to comment
Jahkaya Posted November 3, 2003 Share Posted November 3, 2003 Is this a 10 gallon? If so keep the canopy high and place the corals at the bottom and the sides of the tank. I would be concerned most about the existing corals that have adjusted well to the low lighting. 70w of MH is not that intense that I would have much concern especially on a 10 gallon. Link to comment
Kennetht Posted November 3, 2003 Author Share Posted November 3, 2003 The corals have been in the tank for no more than 2 weeks.....most came from larger tanks with 250W MH lighting previously. Thanks for the help. Link to comment
Jahkaya Posted November 3, 2003 Share Posted November 3, 2003 Most likely no acclimation needed. Just don't place them directly under the 70 at first. Link to comment
Ed-N Posted November 4, 2003 Share Posted November 4, 2003 Hi guys, What about coralline. Will it bleach? I have a 70W HQI on my Minibow7. Right now, I put an aluminum plate on the glass under the bulb to cut down on direct light on the tank. Hopefully this will acclimate things OK. Ed Link to comment
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